Prefabricated building part



FIG. 1 is a perspective view of a prefabricated building part, of my new design;

FIG. 2 is a front elevational view, the rear elevational view being the same, thereof;

FIG. 3 is a left side elevational view, the right side elevational view being the same, thereof; and,

FIG. 4 is a top plan view thereof.

The prefabricated building part of my new design has a bottom that is flat and devoid of surface ornamentation. 

The ornamental design for the prefabricated building part, as shown and described. 